/// <summary>
/// Raises the <see cref="E:System.Windows.Window.Closing"/> event.
/// </summary>
/// <param name="e">A <see cref="T:System.ComponentModel.CancelEventArgs"/> that contains the event data.</param>
protected override void OnClosing(System.ComponentModel.CancelEventArgs e)
{
if (PropertyBagDictionary.Instance.PropertyExists(PropertyBagConstants.RebootRequired) ||
PropertyBagDictionary.Instance.PropertyExists(PropertyBagConstants.UserRejectUpgrade))
{
// If a reboot is required,
// or the user rejects upgrade, the user already had a confirmation message box
// therefore we continue without further checks...
}
else
{
// Make sure we are have a next page... if we don't
// we don't need to warn about closing as that is what should happen
if (PageNavigation.Instance.HasNextPage)
{
// Cast because CanClose is not a member of IPageUI
BasePageForWpfControls currentPage =
PageNavigation.Instance.CurrentPage.PageUI as BasePageForWpfControls;
if (currentPage.CanClose())
{
// Make sure the user wants to cancel
// e.Cancel - if set to false, we will cancel, if set to true, the cancel will be aborted.
e.Cancel = !VerifyUserClose();
}
else
{
e.Cancel = true;
}
}
}
base.OnClosing(e);
}
/// <summary>
/// Handles the Click event of the buttonCancel control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="System.Windows.RoutedEventArgs"/> instance containing the event data.</param>
private void ButtonCancelClick(object sender, RoutedEventArgs e)
{
// Cast because OnCancel is not a member of IPageUI
BasePageForWpfControls currentPage = PageNavigation.Instance.CurrentPage.PageUI as BasePageForWpfControls;
if (currentPage.OnCancel())
{
this.Close();
}
}